Calculated Industries 4045-B - Manual (Page 48)

48 — Construction Master IV
A
PPENDIX
B
Area Formulas
w
l
Rectangle
Area = lw
b
a
Triangle
Area = ab
1
2
Square
Area = a
a
a
2
r
Circle
Circumference = 2
πr
Area =
πr
2
b
a
Ellipse
Area =
πab